hello everyone! I could use some help setting up my N64 retro controller on my mac. I watched videos online and it said it should automatically pick it up but I do not think it is. When I try to click anything it does not work

also from time to time I get a message saying I need to set up a mempak but have no clue how

if anyone could help I'd greatly appreciate it! also I am not too experienced when it comes to setting things like this up so please speak in simple terms